<script setup>
import { ref, onMounted } from "vue";
import {
  queryPageApi,
  queryDeptListApi,
  addUserApi,
  updateUserApi,
  deleteUserApi,
  getUserByIdApi,
  queryRoleListApi,
  uploadFileApi,
} from "@/api/user";
import { ElMessage, ElMessageBox } from "element-plus";

// 查询参数
const queryParams = ref({
  name: "",
  phone: "",
  deptId: "",
  status: "",
  page: 1,
  pageSize: 10,
});

// 表格数据
const userList = ref([]);
const total = ref(0);

// 部门列表
const deptList = ref([]);

// 角色列表
const roleList = ref([]);

// 表单校验
const userFormRef = ref();
const rules = ref({
  username: [
    { required: true, message: "请输入用户名", trigger: "blur" },
    { min: 2, max: 20, message: "长度在 2 到 20 个字符", trigger: "blur" },
  ],
  name: [
    { required: true, message: "请输入姓名", trigger: "blur" },
    { min: 2, max: 20, message: "长度在 2 到 20 个字符", trigger: "blur" },
  ],
  phone: [
    { required: true, message: "请输入手机号", trigger: "blur" },
    {
      pattern: /^1[3-9]\d{9}$/,
      message: "请输入正确的手机号",
      trigger: "blur",
    },
  ],
  email: [
    { required: true, message: "请输入邮箱", trigger: "blur" },
    { type: "email", message: "请输入正确的邮箱地址", trigger: "blur" },
    { min: 5, max: 50, message: "长度在 5 到 50 个字符", trigger: "blur" },
  ],
  gender: [{ required: true, message: "请选择性别", trigger: "change" }],
  status: [{ required: true, message: "请选择状态", trigger: "change" }],
});

// 新增/修改用户对话框
const dialog = ref({
  title: "",
  visible: false,
});

const userForm = ref({
  username: "",
  name: "",
  phone: "",
  email: "",
  gender: "",
  status: "",
  deptId: "",
  roleId: "",
  image: "",
  remark: "",
});

// 文件上传相关
const uploadRef = ref();
const uploadLoading = ref(false);

onMounted(() => {
  loadDeptList();
  loadRoleList();
  search();
});

// 加载部门列表
const loadDeptList = async () => {
  try {
    const result = await queryDeptListApi();
    if (result.code === 1) {
      deptList.value = result.data;
    }
  } catch (error) {
    console.error("加载部门列表失败:", error);
  }
};

// 加载角色列表
const loadRoleList = async () => {
  try {
    const result = await queryRoleListApi();
    if (result.code === 1) {
      roleList.value = result.data;
    }
  } catch (error) {
    console.error("加载角色列表失败:", error);
  }
};

// 查询按钮
const search = async () => {
  try {
    const result = await queryPageApi(queryParams.value);
    if (result.code === 1) {
      userList.value = result.data.rows;
      total.value = result.data.total;
    } else {
      ElMessage.error(result.msg || "查询失败");
    }
  } catch (error) {
    console.error("查询失败:", error);
    ElMessage.error("查询失败");
  }
};

// 重置查询
const clear = () => {
  queryParams.value = {
    name: "",
    phone: "",
    deptId: "",
    status: "",
    page: 1,
    pageSize: 10,
  };
  search();
};

// 分页大小改变
const handleSizeChange = (val) => {
  queryParams.value.pageSize = val;
  queryParams.value.page = 1;
  search();
};

// 页码改变
const handleCurrentChange = (val) => {
  queryParams.value.page = val;
  search();
};

// 获取性别显示文本
const getGenderText = (gender) => {
  return gender === 1 ? "男" : gender === 2 ? "女" : "未知";
};

// 获取状态显示文本
const getStatusText = (status) => {
  return status === 1 ? "正常" : "停用";
};

// 获取状态标签类型
const getStatusType = (status) => {
  return status === 1 ? "success" : "danger";
};

// 添加用户按钮
const handleAdd = () => {
  dialog.value.title = "新增用户";
  dialog.value.visible = true;
  resetForm();
};

// 修改用户按钮
const handleEdit = async (id) => {
  try {
    const result = await getUserByIdApi(id);
    if (result.code === 1) {
      dialog.value.title = "修改用户";
      dialog.value.visible = true;
      userForm.value = { ...result.data };
    } else {
      ElMessage.error(result.msg || "获取用户信息失败");
    }
  } catch (error) {
    console.error("获取用户信息失败:", error);
    ElMessage.error("获取用户信息失败");
  }
};

// 保存按钮
const save = async () => {
  userFormRef.value.validate(async (valid) => {
    if (!valid) return;

    try {
      let result;
      if (userForm.value.id) {
        // 修改用户
        result = await updateUserApi(userForm.value);
        if (result.code === 1) {
          dialog.value.visible = false;
          ElMessage.success("修改成功");
          search();
        } else {
          ElMessage.error(result.msg || "修改失败");
        }
      } else {
        // 添加用户 - 设置默认密码
        const addData = { ...userForm.value };
        addData.password = userForm.value.username + "123";

        result = await addUserApi(addData);
        if (result.code === 1) {
          dialog.value.visible = false;
          ElMessage.success("添加成功");
          search();
        } else {
          ElMessage.error(result.msg || "添加失败");
        }
      }
    } catch (error) {
      console.error("保存失败:", error);
      ElMessage.error("保存失败");
    }
  });
};

// 删除用户
const deleteUser = async (id) => {
  ElMessageBox.confirm("您确认要删除该用户吗？", "提示", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  })
    .then(async () => {
      try {
        const result = await deleteUserApi(id);
        if (result.code === 1) {
          ElMessage.success("删除成功");
          search();
        } else {
          ElMessage.error(result.msg || "删除失败");
        }
      } catch (error) {
        console.error("删除失败:", error);
        ElMessage.error("删除失败");
      }
    })
    .catch(() => {
      ElMessage.info("已取消删除");
    });
};

// 批量删除用户
const batchDelete = async () => {
  // 这里可以实现批量删除逻辑
  ElMessageBox.confirm("您确认要批量删除这些用户吗？", "提示", {
    confirmButtonText: "确定",
    cancelButtonText: "取消",
    type: "warning",
  })
    .then(() => {
      // 批量删除逻辑
      ElMessage.info("批量删除功能待实现");
    })
    .catch(() => {
      ElMessage.info("已取消批量删除");
    });
};

// 重置表单
const resetForm = () => {
  userForm.value = {
    username: "",
    name: "",
    phone: "",
    email: "",
    gender: "",
    status: "",
    deptId: "",
    roleId: "",
    image: "",
    remark: "",
  };
  if (userFormRef.value) {
    userFormRef.value.resetFields();
  }
};

// 文件上传前的处理 - 校验文件
const beforeUpload = (file) => {
  const isImage =
    file.type === "image/jpeg" ||
    file.type === "image/png" ||
    file.type === "image/jpg";
  const isLt2M = file.size / 1024 / 1024 < 2;

  if (!isImage) {
    ElMessage.error("上传头像图片只能是 PNG/JPG/JPEG 格式!");
    return false;
  }
  if (!isLt2M) {
    ElMessage.error("上传头像图片大小不能超过 2MB!");
    return false;
  }
  return true;
};

// 文件上传成功
const handleUploadSuccess = (response) => {
  if (response.code === 1) {
    userForm.value.image = response.data;
    ElMessage.success("上传成功");
  } else {
    ElMessage.error(response.msg || "上传失败");
  }
};
// 移除文件
const handleRemove = () => {
  userForm.value.image = "";
};
</script>

<template>
  <div class="user-management">
    <!-- 搜索区域 -->
    <el-form
      :inline="true"
      :model="queryParams"
      ref="queryForm"
      class="search-form"
    >
      <el-form-item label="姓名">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入姓名"
          clearable
        />
      </el-form-item>
      <el-form-item label="手机号">
        <el-input
          v-model="queryParams.phone"
          placeholder="请输入手机号"
          clearable
        />
      </el-form-item>
      <el-form-item label="部门">
        <el-select
          v-model="queryParams.deptId"
          placeholder="请选择"
          clearable
          style="width: 100%"
        >
          <el-option
            v-for="dept in deptList"
            :key="dept.id"
            :label="dept.name"
            :value="dept.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="状态">
        <el-select
          v-model="queryParams.status"
          placeholder="请选择"
          clearable
          style="width: 100%"
        >
          <el-option label="正常" :value="1" />
          <el-option label="停用" :value="0" />
        </el-select>
      </el-form-item>
      <el-form-item class="search-buttons">
        <el-button type="primary" @click="search">
          <el-icon><Search /></el-icon>搜索
        </el-button>
        <el-button @click="clear">
          <el-icon><Refresh /></el-icon>清空
        </el-button>
      </el-form-item>
    </el-form>

    <!-- 操作按钮区域 -->
    <div class="operation-area">
      <el-button type="primary" @click="handleAdd">
        <el-icon><Plus /></el-icon>添加用户
      </el-button>
      <el-button type="danger" @click="batchDelete">
        <el-icon><Delete /></el-icon>批量删除
      </el-button>
    </div>

    <!-- 表格区域 -->
    <el-table :data="userList" style="width: 100%" border>
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="name" label="姓名" width="120" align="center" />
      <el-table-column
        prop="username"
        label="用户名"
        width="120"
        align="center"
      />
      <el-table-column label="头像" width="80" align="center">
        <template #default="scope">
          <el-avatar
            :size="40"
            :src="scope.row.image"
            :icon="scope.row.image ? undefined : 'UserFilled'"
          />
        </template>
      </el-table-column>
      <el-table-column
        prop="deptName"
        label="部门"
        width="150"
        align="center"
      />
      <el-table-column
        prop="roleName"
        label="角色"
        width="150"
        align="center"
      />
      <el-table-column prop="phone" label="手机号" width="130" align="center" />
      <el-table-column prop="gender" label="性别" width="80" align="center">
        <template #default="scope">
          {{ getGenderText(scope.row.gender) }}
        </template>
      </el-table-column>
      <el-table-column prop="status" label="状态" width="100" align="center">
        <template #default="scope">
          <el-tag :type="getStatusType(scope.row.status)" size="small">
            {{ getStatusText(scope.row.status) }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column
        prop="updateTime"
        label="最后操作时间"
        width="180"
        align="center"
      />
      <el-table-column label="操作" align="center" width="150">
        <template #default="scope">
          <el-button type="primary" link @click="handleEdit(scope.row.id)">
            <el-icon><Edit /></el-icon>修改
          </el-button>
          <el-button type="danger" link @click="deleteUser(scope.row.id)">
            <el-icon><Delete /></el-icon>删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <div class="pagination">
      <el-pagination
        v-model:current-page="queryParams.page"
        v-model:page-size="queryParams.pageSize"
        :page-sizes="[10, 20, 30, 40, 50]"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>

    <!-- 新增/修改用户对话框 -->
    <el-dialog
      :title="dialog.title"
      v-model="dialog.visible"
      width="600px"
      class="user-dialog"
      @close="resetForm"
    >
      <el-form
        :model="userForm"
        ref="userFormRef"
        :rules="rules"
        label-width="80px"
        class="user-form"
      >
        <el-form-item label="用户名" prop="username">
          <el-input
            v-model="userForm.username"
            placeholder="请输入用户名"
            :disabled="!!userForm.id"
          />
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="userForm.name" placeholder="请输入姓名" />
        </el-form-item>
        <el-form-item label="手机号" prop="phone">
          <el-input v-model="userForm.phone" placeholder="请输入手机号" />
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="userForm.email" placeholder="请输入邮箱" />
        </el-form-item>
        <el-form-item label="性别" prop="gender">
          <el-select
            v-model="userForm.gender"
            placeholder="请选择"
            style="width: 100%"
          >
            <el-option label="男" :value="1" />
            <el-option label="女" :value="2" />
          </el-select>
        </el-form-item>
        <el-form-item label="状态" prop="status">
          <el-select
            v-model="userForm.status"
            placeholder="请选择"
            style="width: 100%"
          >
            <el-option label="正常" :value="1" />
            <el-option label="停用" :value="0" />
          </el-select>
        </el-form-item>
        <el-form-item label="部门">
          <el-select
            v-model="userForm.deptId"
            placeholder="请选择"
            clearable
            style="width: 100%"
          >
            <el-option
              v-for="dept in deptList"
              :key="dept.id"
              :label="dept.name"
              :value="dept.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="角色">
          <el-select
            v-model="userForm.roleId"
            placeholder="请选择"
            clearable
            style="width: 100%"
          >
            <el-option
              v-for="role in roleList"
              :key="role.id"
              :label="role.name"
              :value="role.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="头像">
          <el-upload
            ref="uploadRef"
            class="avatar-uploader"
            :headers="{ token: token }"
            action="/api/upload"
            name="image"
            :before-upload="beforeUpload"
            :show-file-list="false"
            :on-success="handleUploadSuccess"
          >
            <img v-if="user.image" :src="user.image" class="avatar" />
            <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
          </el-upload>
          <div class="upload-tip">
            图片上传,支持扩展名: .png/.jpg/.jpeg 大小限制: 2M
          </div>
        </el-form-item>
        <el-form-item label="备注说明">
          <el-input
            v-model="userForm.remark"
            type="textarea"
            :rows="3"
            placeholder="请输入用户的备注信息,最多200字"
            maxlength="200"
            show-word-limit
          />
        </el-form-item>
      </el-form>
      <template #footer>
        <el-button @click="dialog.visible = false">
          <el-icon><Close /></el-icon>取消
        </el-button>
        <el-button type="primary" @click="save">
          <el-icon><Check /></el-icon>确定
        </el-button>
      </template>
    </el-dialog>
  </div>
</template>

<style scoped>
.user-management {
  padding: 20px;
  background-color: #fff;
  min-height: 100%;
  border-radius: 8px;
}

.operation-area {
  margin: 20px 0;
  display: flex;
  gap: 10px;
}

.search-form {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.search-form :deep(.el-form-item) {
  margin-right: 20px;
  margin-bottom: 15px;
  min-width: 200px;
}

.search-buttons {
  margin-left: auto !important;
  min-width: auto !important;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

:deep(.el-button .el-icon) {
  margin-right: 4px;
}

:deep(.el-table .el-table__cell) {
  padding: 8px 0;
}

:deep(.el-avatar) {
  border: 1px solid #e4e7ed;
}

:deep(.user-dialog .el-dialog__body) {
  padding-top: 30px;
}

.user-form {
  width: 90%;
  margin: 0 auto;
}

.avatar-uploader {
  text-align: center;
}

.avatar-uploader .avatar {
  width: 100px;
  height: 100px;
  display: block;
  border: 1px solid #d9d9d9;
  border-radius: 6px;
}

.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 100px;
  height: 100px;
  text-align: center;
  line-height: 100px;
}

.upload-tip {
  font-size: 12px;
  color: #999;
  margin-top: 8px;
  text-align: center;
}
</style>
